Knitting machine



Feb. 28, 1939; H. s. HORROCKS KNITTING MACHINE Filed Feb. 26, 1937 2Sheets-Sheet l gmmm ,SflbrrbckS,

H. S. HORROCKS I Feb. 28, 1939.

Filed. Feb. 26, 1937 Patented Feb. 28, 1939 Referring to the drawi madea part par Fig. 1 is and associ needle knitting Fig. 2, a of Fig. 1,'

20 rel a vertical section t parts of a c ated chara I- I. BrintApplication February 26,

achine,

on 00., Phil tlon of Pennsylvani T OFFICE KNITTING MACHINE Harry S.Horrocks, Philadelphia, Pa., assignor to 1 Claim.

ngs, which are hereby i this application, and

cters indicate similar in which hrough the cylinder ircular independentelevation, viewed from the left side ated part Fig. 6, an elevati gs. 7and 8, vi of the sinkers In the drawing with sinkers by any conv theretractin entional or desirab g cam l5 ews illustrating the the yarns.

s, reference chara cylinder provided er bei sinker bed but which areselectively advanced by now to be described.

ers, as best shown -holding finger The sink m itsperiphery ceiving thethreaded stem 9. web

is pattern whe with screwl6 and parts shown 1 cter wit, other set have nFig. I.

on of the same, and

operation ng supported on the in Figs. 7 and 8,

are otherat a re1aplace them in sinker-advancing el is provi threadedhe] s of studs 26,

ded about es for rethe holes adelphi a, Pa., a corpora- 1997, Serial No.127,993 (01. 6693) at A.

If the machine has a as above described, and if th are correspondinglyactuated will be as above set forth.

spaced by plain areas.

A further variation may be produced by providing, e. g., a red body yarnand a black pile yarn at alternate feeds, while leaving a black bodyyarn and a red pile yarn at the intermediate feeds. Now if cam I9 isadvanced at one of two adjacent feeds and cam 20 at the other, the sinkers B will cause red pile loops to appear at the corresponding wales atone feed and the sinkers A will cause black pile loops to appear at theremaining wales, thus making a vertically striped fabric. By reversingthe relation of the cams, red loops will be made to appear at wales A atthe first-named feed and black pile loops at the second-named feed atwales B, thus producing a broken or checked design. If both cams areadvanced at all the alternate feeds while the cams of intermediate feedsare retracted, horizontal red stripes will appear, while if both camsare advanced at all the intermediate feeds while at the alternate feedsboth cams are retracted, horizontal black stripes will appear.

It will thus be seen that I have made provision for making a widevariety of designs by the use of pile loops, and for changing with easefrom one design to another by changing the location of studs 26 and byproviding such studs at positions indicated or leaving the same. blank,and further by altering the pattern control of the ratchet drivingmeans.

It will be obvious to those skilled in the art that many variations maybe made in the devices shown in the drawings and described in thespecification, all without departing from the spirit of the invention;therefore I do not limit myself to the means so shown and described butonly as indicated in the accompanying claim and as necessitated by thestate of the art. For instance, while I have shown two levels ofshoulders on the sinkers, it is obviously within the scope of myinvention to provide additional levels, with appropriately locatedactuating cams and corresponding abutments on the wheel, etc.

Having thus fully described my invention, what I claim is:

In a machine for knitting patterned pile fabric, the combination of aneedle cylinder, a circular series of needles therein, a plurality ofseries of sinkers cooperating with said needles, said sinkers havingweb-holding fingers and the sinkers of each series also havingsinker-advancing shoulders at an individual level, means for feed-' inga main yarn and a pile yarn in such relation to said sinkers as to formpile loops over said fingers on fully advanced sinkers, cams eachpositioned to engage with the advancing shoulders at one of said levels,a wheel in a fixed parallel relation to the axis of said cylinder,removable studs on the periphery of said wheel at levels correspondingto those of said cams, and pattern-cone trolled means for rotating saidwheel, whereby changes in patterns may be effected automatically. VHARRY S. I-IORROCKS.

